Overhead rotary valve for internal-combustion engines



s. L. WAREHAM AND 1. F. PANZNER. OVERHEAD ROTARY VALVE FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED NOV-24. I919- Patented July 12,

I gwumio 5RMUEL L.

UNITED STAT S.

- SAMUEL n WAB KA nJQ rH F. imam or vermi mcfiieaa;

ovn rciraanaornar vmivuron rurnnnar-oomnsrronEnemies;

I Specification'of Lettersla'tenty Pat t gu g, 92

I Application.filed November 24, 1919; ,SeriaLKonMOfiflZW To (allwhomz tma y comem: i I

Be it known that we, SAMnnL L. WA E- HAM and JOSEPH F. Pauznnn citizensofthe United Statesof America, residing at Detroitpin thecounty ofWayne'and 'Stateof Michigam have inventedcertain newuand useful Improvements. in Overhead- Rotary Valves for InteinaLComb-ustion Engines, of which the followingis aspecificatiOn, reference being had therein to the accompanying drawings. T i u The primary object of our invention is to provide a rotary valve that maybe advantageously used as the inlet and exhaust valve of an internal combustion engine; thevalve being constructedsofthat thesexhaust gases may beutilized for heating walls of a chamber containing an explosivemixture for the engine, the heat being by conductionand sufficient to increase; the efliciencyof the-ex plosive mixture as'a fuel for theengine. Biy heating or dryingv'out the; BXPIOSlVBrJIIIlXlEH'IQ it is placed a better condition for ignition, insures. a less amount of carbon deposit in an engine cylinder, and affords practically instantaneous combustionywithout any slow burning in the cylinder whichxis liable to cause lagging in the'timed operation. of a multicylinder combustion engine:

Another object ofour-invention is to provide a novel overhead valve body with'a rotary valve arranged to revolve with mini- ,mum friction and disposed "so that it may be positively driven without any material i leakage and without any overheating during the operation ofanengine served byxthe rotary valve.

A further object of our invention is to provide a valve construction wherein the parts areconstructed with i'a'view of reducing the cost of manufacture and at the same time retain those features by which safety, durability,-and ease'otassembling are secured. Withsuch ends in view, our invention resides in the novel construction to: be

hereinafter considered" and then claimed.

Reference will now .behad to thedrawing, wherein Figure 1 is a vertical cross sectional view of a valve body and valve in accordance with our invention;

Fig. 2 is a longitudinal sectional view of the same;

Fig. 3 is a plan of the valve body with the cover thereof removed;

Fig. 4 is a plan of a detached valve;

Fig. '5 is;.anwend. view' of the same;

PATENT i I l i.-

, Fig..6-is.anend'viewofa three-way con:-

nection'adapted to be attached ,to the valve body, and i R Fig. 7 isia side elevation ofath'e same.

. In the drawing, the reference numeral :1 denotesv a substantially rectangular water Jacket having a circular base-2adapted to be mountedon anyengine cylinderorzcylin der block and retained thereon; by tie rods or gbolts extending :throughzaverti lly;

posed and suitably spaced; -bosses 1 on the inner walls-10f the-water jacket 1. The rods or. bolts-.3 are-employed for retaining a cap or: cover 5 "on; the waters jacket :"1,;'and said cap or; cover has a-waterz inlet connection 6 by; which :water or a coolingragenti maybe admittedtozthe jacketli The circular base '2 of the l water jacket 1 has a dome7 adapted. to close the upper end of a cylinder andfthis dome' has awsingle walled jpassage: or ported. rib 8' whichco operates with-other ribs :9 and 10 in supporting a cylindrical-valve body 11 within the water acket 1 and :in spaced relation to the inner Wallsthereofso 'that'the coo-ling agent i i may surroundxthe valve body 11.

, {The ends ofthe waterjacket 1 have cylindrical flanges or collars 12cand 13, with the latter provided with ayperipheralfla-nge '14 to which is suitably connected a three-wa y connection '15 whichin turn supports "an exhaust pipe 16.. I .'--r:

Journaledinithe valve body ll is a cylindrical valve17having"a short reduced end 18 and along reduced end .19; Mounted on the short reduced end'18 of the valve body 17 is a hub portion-20 ofwa worm wheel2l representing a conventional form. of power transmission wheel or? device, the worm wheel21.beingfiemployed:for'imp'arting a 1 I rotary movement to the valvei17wwithinthe valverbody) 11; The wheel21 has its hub portion 20' connected tothe end of the valve 17 gby" screwbolts 22 "or othermfastening means a-nd series: of antifrictional rollers 23 T are locatedin the c'ollarjl2 aboutithe h'ub portion 20 of'the wheel 21. With the wheel 21 abutting the end of the collar 12 the longitudinal movement of thevalve 17 is limited in one direction, and said wheel is also employed as a closure member for a'cylindrical longitudinal passage or bore 24 concentrically of the valve 17.

The opposite end ofthe valve body 17 is surrounded by anti-frictional rollers 25 within the collar 13 and thelong reduced end 19 of said valve extends through the three-way connection 15 into the exhaust stitute anti-frictional bearings so as toinsure a "minimum friction when the valve 17 is revolved in itsvalve body. The valve 17 is of novel 'construction with the bore 24; thereof surrounded by communicating chain;-

- bers 27 and these chambers are adapted to have the inner wallsthereofheated by ex haust gases passing out of' the bore 2 1, the heating of the chamber 27 being conduction, The valve body 17, intermediate the ends thereof,-is formed with diametrically opposedexhaust ports'28 constantly communieating with the bore 24 and adapted to alternately communicate with the ported rib-8' communicating with the dome 7, so

that an engine cylinder "may exhaust through the ported rib 8, the-ports 28, and the bore 24 into the exhaust pipe 6. Between the ports 28 the outer wall of the valve 17 has ports 29 adapted to establish com munication between the chambers 27 and the ported ;rib"8, so that an 'explosive mixture which has *been heat'ed within the chambers 27, may be admitted' to an engine cylinder.

The explosive mixture is admitted to the chambers 27 by the three way connection 15 and as the explosivemixture passes from this three-way connection into the valve it impinges against the walls ofthe' long re duced end 19 of said valve, and encounters its first heated surface before passing through the chambers 27 which are within the body of the valve 17 and formed by the inner and outer walls of the I valve which are maintained in spaced relation by'connecting'webs or ribs in addition to the walls of the ports 28and 29.

Adjacentthe ends fof the valve 17 are suitable packing rings 30 andto lubricate the valve 17 some ofthe ribs 10 are ported, as at 31, to communicate with a lubricant chamber 32 mounted on the side'of thew'at er jacket 1, said lubricant chamber being supplied with oil or a-suitable lubricant which may be fed to the valve body 11 by gravity ofva force feed lubricant system.

" From the foregoing it will be noted that during, each revolution of the; rotary valve 17 there are two communications with the ported rib 8 for exhaust purposes, and two communications for intake purposes, and during such an operation there is no danger of the valve being jammed or becoming accidentally displaced. I

It is thought theoperation and utility of our construction will be apparent without further description, and while in the drawing there isillustrated a preferred embodimentof our invention, it is to be understood that the structural elements are susceptible to suchvariations and modifications as fall within the scope of the appended claim;

' i What We claim is A rotary valve comprising a valve body having a port adapted to! communicate with the cylinders of an internal combustion engine, collars at the ends of; said valve body, a three-Way inlet connection carried by one of said collars,'an exhaust pipe connected to said three-way connection, a valve rotatable in said valve body having short and long reduced ends, and an exhaust bore throughout the length thereof, the longreducedend of said valve extending'through said three-way connection into said exhaust pipe,'a packing member about the long re duced end of said valve adjacent the exhaust pipe, saidvalve having opposed ports therein communicating with the exhaust bore thereof,said valve having chambers therein about the bore to be heated by the walls of the bore and the chambers communicating with'said 'th ree-way connection, said valve having chamber ports to'communicate with the port of said valve body, a power transmission wheelhaving a hub portion fitted on the short reduced'end of said valve within said valve body and closing said bore and the other of said collars, and anti-frictional bearingsin both of said collars against said valve and retained therein by the power transmission wheel and said three-way connection. In testimony whereof -we aflix our signatures in presenceof two witnesses.

SAMUEL L. WAREHAM. JOSEPH F. PANZNER.

Witnes'ses:1 l

BUTLER,

ANNA M, Donn. 

